I didn't know you were naked.
3 seconds sound clip from the Elf (2003) movie soundboard.
You can hear this line at 00:35:21 in the Blu-ray version of the movie.
Quote context
[...]
- Come here. I wanna talk to you.
- What you wanna talk to me about?
- How come you were in the women's locker room this morning?
- You sure it had nothing to do with the fact that I was naked in the shower?
- I didn't know you were naked.
- What were you doing here so early?
- Mm-hm. They're kind of pissed about this.
- Really?
[...]